2240008 has 8 divisors (see below), whose sum is σ = 4200030. Its totient is φ = 1120000.

The previous prime is 2240003. The next prime is 2240023. The reversal of 2240008 is 8000422.

It can be written as a sum of positive squares in only one way, i.e., 2125764 + 114244 = 1458^2 + 338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2239973 and 2240000.

It is not an unprimeable number, because it can be changed into a prime (2240003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139993 + ... + 140008.

2^2240008 is an apocalyptic number.

It is an amenable number.

2240008 is a deficient number, since it is larger than the sum of its proper divisors (1960022).

2240008 is a wasteful number, since it uses less digits than its factorization.

2240008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280007 (or 280003 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2240008 is about 1496.6656273196. The cubic root of 2240008 is about 130.8428081724.

The spelling of 2240008 in words is "two million, two hundred forty thousand, eight".